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TRANSACTIONS OF THE 



This is beyond question the safest means of water supply that can be 

 obtained for any city. River, spring, and rain water are all, more or less, 

 exposed to pollution, and consequently are often suspicious, if not posi- 

 tively dangerous, and their use inimical to health; while here we have a 

 system in operation which conforms with every sanitary regulation, and 

 where its water is protected from any possible contamination from its 

 source to the most distant point of distribution. 



All deep well waters unavoidably contain, in a variable degree, mineral 

 and organic matters; and it is a misapprehension to suppose that their 

 presence in natural water necessarily renders the water impure or unwhole- 

 some. On the contrary, the medicinal and hygienic effects of the small 

 quantity of iron, sulphur, magnesia, and other salts contained in the water 

 supply of Marysville and the surrounding country, are unmistakable, and 

 as has been stated above, to these qualities of the water, as much as the 

 generally favorable sanitary conditions which prevail, are attributable the 

 immunity which the people of our counties have long enjoyed from dis- 

 ease and pestilence. 



TEMPERATURE AS AFFECTING CITRUS CULTURE IN YUBA AND SUTTER COUNTIES. 



We give below a table of temperature of places known as having warm 

 and equable climates. These tables are from the records of the United 

 States Signal Service Office, and cover the years from 1877 to 1887, inclu- 

 sive. "Spring," means March, April, and May; "Summer," June, July, 

 and August; "Fall," September, October, and November; "Winter," De- 

 cember, January, and February. 



The winter temperature at Los Angeles is 3.5° higher than at Marysville, 

 and at San Diego, 4.4° higher. This difference is very slight, and the mini- 

 mum at either place has never been low enough to kill citrus trees. Ice 

 has formed in Marysville; so also has it been known in Los Angeles: 



One of the interesting facts exhibited by the table is that the winter 

 temperature at Rome and at Marysville is nearly the same, the difference 

 being one and one tenth degrees in favor of our city. But the average for 

 the year at Rome is less than at Marysville, while a trifle higher than at 

 either Los Angeles or San Diego. 



It is especially noticeable that Marysville has a warmer and earlier 

 spring, and cooler summer and fall, than the Eternal City. 



It is well known that fruits ripen and vegetables mature much earlier 

 in the neighborhood of Marysville than of Los Angeles. The above table 

 supplies the explanation of this, in the fact that the seasons of spring and 

 summer are warmer here. The mercury does not rise to a higher figure 

 here, but the minimum readings are higher than at Los Angeles. The 

 maximum temperature recorded at Los Angeles, is 108°, and at Marysville, 

 110°. Our spring and summer nights, while pleasant, are not so cool as 



